 
<template>
  <div class="app-container">
    <el-form ref="queryFormRef" :model="queryParams" :inline="true">
      <el-form-item>
        <el-button type="success" :icon="Plus" @click="handleAdd"
          >新增</el-button
        >
        <el-button
          type="danger"
          :icon="Delete"
          :disabled="single"
          @click="handleDelete"
          >删除
        </el-button>
      </el-form-item>

      <el-form-item prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="部门名称"
          @keyup.enter="handleQuery"
        />
      </el-form-item>

      <el-form-item prop="status">
        <el-select
          v-model="queryParams.status"
          placeholder="部门状态"
          clearable
        >
          <el-option :value="1" label="正常" />
          <el-option :value="0" label="禁用" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button
          class="filter-item"
          type="primary"
          :icon="Search"
          @click="handleQuery"
        >
          搜索
        </el-button>
        <el-button :icon="Refresh" @click="resetQuery"> 重置 </el-button>
      </el-form-item>
    </el-form>

    <el-table
      v-loading="loading"
      :data="deptList"
      row-key="id"
      default-expand-all
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column prop="name" label="部门名称" />
      <el-table-column prop="status" label="状态" width="100">
        <template #default="scope">
          <el-tag v-if="scope.row.status == 1" type="success">正常</el-tag>
          <el-tag v-else type="info">禁用</el-tag>
        </template>
      </el-table-column>

      <el-table-column prop="sort" label="显示排序" width="200" />

      <el-table-column label="操作" align="center" width="150">
        <template #default="scope">
          <el-button
            type="primary"
            link
            @click.stop="handleUpdate(scope.row)"
          >编辑
          </el-button>
          <el-button
            type="success"
            link
            @click.stop="handleAdd(scope.row)"
          >新增
          </el-button>

          <el-button
            type="danger"
            link
            @click.stop="handleDelete(scope.row)"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改部门对话框 -->
    <el-dialog
      :title="dialog.title"
      v-model="dialog.visible"
      width="600px"
      @closed="cancel"
    >
      <el-form
        ref="dataFormRef"
        :model="formData"
        :rules="rules"
        label-width="80px"
      >
        <el-form-item label="上级部门" prop="parentId">
          <el-tree-select
            v-model="formData.parentId"
            placeholder="选择上级部门"
            :data="deptOptions"
            filterable
            check-strictly
          />
        </el-form-item>
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="formData.name" placeholder="请输入部门名称" />
        </el-form-item>
        <el-form-item label="显示排序" prop="sort">
          <el-input-number
            v-model="formData.sort"
            controls-position="right"
            style="width: 100px"
            :min="0"
          />
        </el-form-item>
        <el-form-item label="部门状态">
          <el-radio-group v-model="formData.status">
            <el-radio :label="1">正常</el-radio>
            <el-radio :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>

      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm"> 确 定 </el-button>
          <el-button @click="cancel"> 取 消 </el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>
<script >
// Vue依赖
import { onMounted, reactive, ref, toRefs } from 'vue';

// API依赖
import {
  getDeptForrmData, deleteDept, updateDept, addDept,
  listSelectDepartments, listDepartments,
} from '@/api/sys/admin/dept';

// 组件依赖
import { Search, Plus, Edit, Refresh, Delete } from '@element-plus/icons-vue';
import { ElForm, ElMessage, ElMessageBox } from 'element-plus';
import {
  DeptFormData,
  DeptItem,
  DeptQueryParam,
} from '@/api/sys/admin/dept';

export default {
  name: 'dept',
  components:{Search, Plus, Edit, Refresh, Delete },
  setup(){
	  
	  const queryFormRef = ref(ElForm);
	  const dataFormRef = ref(ElForm);
	  
	  const state = reactive({
	    // 选中ID数组
	    ids: []  ,
	    // 非单个禁用
	    single: true,
	    loading: true,
	    // 表格树数据
	    deptList: []  ,
	    // 部门下拉选项
	    deptOptions: [] ,
	    // 弹窗属性
	    dialog: { visible: false }  ,
	    // 查询参数
	    queryParams: {status:1,name:''} ,
	    // 表单数据
	    formData: {
	      sort: 1,
	      status: 1,
	    } ,
	    // 表单参数校验
	    rules: {
	      parentId: [
	        { required: true, message: '上级部门不能为空', trigger: 'blur' },
	      ],
	      name: [{ required: true, message: '部门名称不能为空', trigger: 'blur' }],
	      sort: [{ required: true, message: '显示排序不能为空', trigger: 'blur' }],
	    },
	  });
	  
	  const {
	    single,
	    loading,
	    deptList,
	    deptOptions,
	    queryParams,
	    formData,
	    rules,
	    dialog,
	  } = toRefs(state);
	  
	  /**
	   * 部门查询
	   */
	  function handleQuery() {
	    state.loading = true;
	    listDepartments(queryParams.value).then(({ data }) => {
	      state.deptList = data;
	      state.loading = false;
	    });
	  }
	  
	  /**
	   * 重置查询
	   */
	  function resetQuery() {
	    queryFormRef.value.resetFields();
	    handleQuery();
	  }
	  
	  function handleSelectionChange(selection) {
	    state.ids = selection.map((item) => item.id);
	    state.single = selection.length === 0;
	  }
	  
	  /**
	   * 加载部门下拉数据源
	   */
	  async function loadDeptData() {
	    const deptOptions = [];
	    listSelectDepartments().then((response) => {
	      const rootDeptOption = {
	        value: '0',
	        label: '顶级部门',
	        children: response.data,
	      };
	      deptOptions.push(rootDeptOption);
	      state.deptOptions = deptOptions;
	    });
	  }
	  
	  /**
	   * 添加部门
	   */
	  function handleAdd(row) {
	    loadDeptData();
	    state.formData.id = undefined;
	    state.formData.parentId = row.id;
	    state.dialog = {
	      title: '添加部门',
	      visible: true,
	    };
	  }
	  
	  /**
	   * 修改部门
	   */
	  async function handleUpdate(row) {
	    await loadDeptData();
	    const deptId = row.id || state.ids;
	    state.dialog = {
	      title: '修改部门',
	      visible: true,
	    };
	    getDeptForrmData(deptId).then((response) => {
	      state.formData = response.data;
	    });
	  }
	  
	  /**
	   * 部门表单提交
	   */
	  function submitForm() {
	    dataFormRef.value.validate((valid) => {
	      if (valid) {
	        if (state.formData.id) {
	          updateDept(state.formData.id, state.formData).then(() => {
	            ElMessage.success('修改成功');
	            cancel();
	            handleQuery();
	          });
	        } else {
	          addDept(state.formData).then(() => {
	            ElMessage.success('新增成功');
	            cancel();
	            handleQuery();
	          });
	        }
	      }
	    });
	  }
	  
	  /**
	   * 删除部门
	   *
	   * @param row
	   */
	  function handleDelete(row) {
	    const ids = [row.id || state.ids].join(',');
	    ElMessageBox.confirm(`确认删除已选中的数据项?`, '警告', {
	      confirmButtonText: '确定',
	      cancelButtonText: '取消',
	      type: 'warning',
	    })
	      .then(() => {
	        deleteDept(ids)
	          .then(() => {
	            handleQuery();
	            ElMessage.success('删除成功');
	          })
	          .catch(() => {
	            console.log(`删除失败`);
	          });
	      })
	      .catch(() => ElMessage.info('已取消删除'));
	  }
	  
	  /**
	   * 取消/关闭弹窗
	   **/
	  function cancel() {
	    dialog.value.visible = false;
	    formData.value.id = undefined;
	    dataFormRef.value.resetFields();
	    dataFormRef.value.clearValidate();
	  }
	  
	  onMounted(() => {
	    handleQuery();
	  });
	  return {queryFormRef,dataFormRef,
		  //ref
		  state,single, loading,deptList,
	      deptOptions,queryParams, formData, rules,dialog,
		  //modal
		  cancel ,handleQuery,resetQuery,handleDelete,submitForm,handleUpdate,handleAdd,loadDeptData,
		  handleSelectionChange,
		  //function
	  }
  }
};
</script>
<style>
.app-container{
	margin:20px;
}
</style>
